Lock



FIG. 1 is a perspective view of a lock made in accordance with an embodiment of the new design;

FIG. 2 is a front elevation view of the lock of FIG. 1;

FIG. 3 is a right side view of the lock of FIG. 1;

FIG. 4 is a rear view of the lock of FIG. 1;

FIG. 5 is a left side view of the lock of FIG. 1;

FIG. 6 is a top view of the lock of FIG. 1; and,

FIG. 7 is a bottom view of the lock of FIG. 1.

The portions of the Figures shown in phantom lines form no part of the claimed design, but are directed to environment and for illustrative purposes only, or are to define the boundaries of the claimed design. 

We claim the ornamental design for a lock, as shown and described. 